English verb conjugation
OUGHT TO CASE

Regular verb: case - cased - cased

Affirmation

Simple form	V-ing form
I ought to case you ought to case she ought to case we ought to case you ought to case they ought to case	I ought to be casing you ought to be casing she ought to be casing we ought to be casing you ought to be casing they ought to be casing
Perfect	V-ing perfect
I ought to have cased you ought to have cased she ought to have cased we ought to have cased you ought to have cased they ought to have cased	I ought to have been casing you ought to have been casing she ought to have been casing we ought to have been casing you ought to have been casing they ought to have been casing

Negation

Simple form	V-ing form
I oughtn't to case you oughtn't to case she oughtn't to case we oughtn't to case you oughtn't to case they oughtn't to case	I oughtn't to be casing you oughtn't to be casing she oughtn't to be casing we oughtn't to be casing you oughtn't to be casing they oughtn't to be casing
Perfect	V-ing perfect
I oughtn't to have cased you oughtn't to have cased she oughtn't to have cased we oughtn't to have cased you oughtn't to have cased they oughtn't to have cased	I oughtn't to have been casing you oughtn't to have been casing she oughtn't to have been casing we oughtn't to have been casing you oughtn't to have been casing they oughtn't to have been casing

Interrogative form

Simple form	V-ing form
ought to I case? ought to you case? ought to she case? ought to we case? ought to you case? ought to they case?	ought to I be casing? ought to you be casing? ought to she be casing? ought to we be casing? ought to you be casing? ought to they be casing?
Perfect	V-ing perfect
ought to I have cased? ought to you have cased? ought to she have cased? ought to we have cased? ought to you have cased? ought to they have cased?	ought to I have been casing? ought to you have been casing? ought to she have been casing? ought to we have been casing? ought to you have been casing? ought to they have been casing?

Interro-negative form

Simple form	V-ing form
oughtn't I to case? oughtn't you to case? oughtn't she to case? oughtn't we to case? oughtn't you to case? oughtn't they to case?	oughtn't I to be casing? oughtn't you to be casing? oughtn't she to be casing? oughtn't we to be casing? oughtn't you to be casing? oughtn't they to be casing?
Perfect	V-ing perfect
oughtn't I to have cased? oughtn't you to have cased? oughtn't she to have cased? oughtn't we to have cased? oughtn't you to have cased? oughtn't they to have cased?	oughtn't I to have been casing? oughtn't you to have been casing? oughtn't she to have been casing? oughtn't we to have been casing? oughtn't you to have been casing? oughtn't they to have been casing?